Left to right, PRINCESS ANNI-FRID REUS VON PLAUEN she was Frida from pop group ABBA, writer KATHY LETTE and her husband GEOFFREY ROBERTSON QC at a gala dinner in the presence of HM Quenn Silvia of Sweden and HM Queen Noor of Jordan in aid of the charity Mentor held at the Natural History Museum, Cromwell Road, London on 23rd May 2006.